Study on the ICP-MS Technology of Trace Uranium and Plutonium in Environmental Water(In Chinese)

Abstract

The method of detecting U and ~(239)Pu of the water in the environment was founded.100 L water of river,reservoir and tap water were respectively sampled.The concentration of ~(239)Pu was analyzed by ICP-MS after the treatment by coprecipitation-anion exchange,the detection limit was 0.06 ng/L.Standard fitting curve and internal standard method was used to quantity,the result showed that the concentration of ~(239)Pu of the water of river,tap water was (below) the detection limit,the concentration of the water of reservoir was 10~14 g/L;All of the water were directly filtrated then detected by ICP-MS,the concentration of U of all the water was 0.5～1 μg/L.

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